component
WF4455TD AS6T LG
Public Made by Adomby adom
WF RF Transceiver ICs, SOT-23-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownWF4455TD AS6T LG
WF · RF Transceiver ICs · SOT-23-6
WF4455TD AS6T LG from WF, in a SOT-23-6. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | XOUT | output | Oscillator output of the Pierce-type crystal oscillator; the crystal's shunt load capacitor is placed over XIN and XOUT, and the crystal should be the vendor-specified load-capacitance type (about 12 pF to 18 pF typical). |
| 2 | VSS | power_in | Ground connection; the larger ground plane should be placed as close as possible to all VSS pins (VSS = 0 V reference for all ratings). |
| 3 | PAOUT | output | Power amplifier output on an open-drain structure, fed through a large choke inductor to the supply and then a DC block capacitor into a C-L-C matching network; ESD rating is 4 kV HBM and 400 V MM. |
| 4 | DIN | input | Data input: HIGH enables the PLL chain and PA, LOW turns the PA off immediately and the PLL off after the one-shot delay (about 50 ms at 13.56 MHz); data rate 0.5 to 50 kbps, and I/O voltage limited to -0.3 V to 5 V absolute maximum. |
| 5 | VDD | power_in | Power supply; recommended operating range is 2.2 V to 3.6 V (3.0 V nominal), with absolute maximum of -0.3 V to 5 V. |
| 6 | XIN | input | Oscillator input of the Pierce-type crystal oscillator; the shunt capacitor over XIN and XOUT should be about 2x CL, and an optional series R5 on XIN helps oscillation with high crystal ESR (recommended maximum ESR 40 Ω). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | WF |
| Package | SOT-23-6 |
| Category | RF And Wireless |
| Pins | 6 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Absolute Maximum Supply Voltage Range | VDD | -0.3 | 5 | V | (VSS=0V) | 6 | |
| Absolute Maximum I/O Voltage | VI/O | -0.3 | 5 | V | (VSS=0V) | 6 | |
| Absolute Maximum Operating Temperature Range | TA | -40 | 85 | °C | 6 | ||
| Absolute Maximum Storage Temperature Range | TSTG | -55 | 125 | °C | 6 | ||
| Recommended Supply Voltage Range | VDD | -0.3 | 3.6 | V | (VSS=0V) | 6 | |
| Recommended Operating Temperature Range | TA | -40 | 85 | °C | 6 | ||
| Supply Voltage | VDD | 2.2 | 3 | 3.6 | V | Nominal conditions: VDD = 3.0 V, VSS = 0 V, TA = +27°C | 6 |
| Frequency Range | fRF | 250 | 450 | MHz | 6 | ||
| Data Rate | DRATE | 0.5 | 2 | 50 | Kbps | 6 | |
| Operating Current (Note) | IDD | 17 | mA | DIN=High(CW mode); POUT =12dBm, fRF = 315MHz | 6 | ||
| Standby Current | Istandby | 1 | A | DIN=Low; TDELAY>50ms | 6 | ||
| Power Amplifier Output Power (Note) | Pout | 11 | dBm | fRF = 315MHz | 6 | ||
| Power Amplifier Output Power (Note) | Pout | 10 | dBm | fRF = 434MHz | 6 | ||
| RF Power On / Off Ratio | PEXT | 60 | dB | 6 | |||
| Phase Noise | PNOISE | -75 | dBc/Hz | 315MHz, 10KHz offset | 6 | ||
| Harmonics (Note) | PHARM | -40 | dBc | 2x/3x fRF | 6 | ||
| Crystal Spur | PSPUR | -50 | dBc | fRF = 315MHz | 6 | ||
| Crystal Oscillator Start-up Time | TON | 1 | ms | CL not connected | 6 | ||
| One-shot Delay Time | TDELAY | 50 | ms | 6 |
CAD (KiCad official)
- Symbol:
WF4455TD AS6T LG - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
wf4455td-as6t-lg-etched.step/wf4455td-as6t-lg-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);wf4455td-as6t-lg.step/wf4455td-as6t-lg.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: WF datasheet (7 pp, sha256
89b1c65ee8bbb01e, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).